Read the passage given below carefully and answer the questions that follow:

Major Chandra, an infantry soldier, was posted in the border area with his unit. One day, an informer gave a message that terrorists had entered a school and were threatening to blow it up if some of their terrorist prisoners were not released. The major entered the school premises along with other soldiers but was shocked to see the terrorists armed with the latest weapons. Soon the firing started; the terrorists had an advantageous position and immediately shot down a few soldiers without caring for their lives. Major Chandra entered the school and started firing, which led to the killing of the terrorists, and he got badly injured. Though the Major has recovered, he still gets flashbacks and recurring nightmares. Identify the disorder Major Chandra is suffering from:

Correct Answer: Post-traumatic Stress Disorder

Step-by-Step Explanation:

1. Analyze the Symptoms and Context:
The passage describes Major Chandra experiencing a highly stressful, life-threatening event: entering a school infiltrated by terrorists, witnessing his fellow soldiers being shot, engaging in a deadly gunfight, and sustaining severe injuries. Following this traumatic experience, even though he has physically recovered, he continues to experience specific psychological symptoms: flashbacks and recurring nightmares of the event.

2. Evaluate the Options:
- Post-traumatic Stress Disorder (PTSD): This is a mental health condition triggered by witnessing or experiencing a terrifying, traumatic event (such as combat, a natural disaster, or a serious accident). Key symptoms include intrusive memories, flashbacks, nightmares, and severe anxiety. Major Chandra's flashbacks and recurring nightmares directly align with the diagnostic criteria for PTSD.
- Conversion Disorder: This involves neurological symptoms (like paralysis, blindness, or seizures) that cannot be explained by a medical disease or culturally sanctioned behavior, typically triggered by psychological conflict. Major Chandra does not show these symptoms.
- Illness-Anxiety Disorder: This is characterized by an excessive preoccupation with having or acquiring a serious medical illness, which is not present here.
- Generalized Anxiety Disorder (GAD): This involves chronic, excessive, and unrealistic worry about everyday life events, without a specific link to a single past traumatic event.

3. Conclusion:
Since Major Chandra's symptoms (flashbacks and recurring nightmares) are direct psychological consequences of a severe, life-threatening combat trauma, he is suffering from Post-traumatic Stress Disorder.